As far as my personal understanding of business in general, why not at least hire a professional writer/editor to make sure the content on the website does not have broken English language? Saying Czech people do not speak good English is not an excuse for someone who has a business that is clearly and willingly targets English speaking people. Trust is hard enough to earn, and most of the time, you only have one shot to make a good impression.

For verification purposes, what is the URL that KING-CZ hosts with you?

Also, how many clients do you have? If all of them are from the Czech Republic, why do you not have a website in native Czech language so that your clients do not have to struggle understanding English?